Which of the following pairs correctly matches a leadership theory with its key proposition?
I.   Situational Leadership (Hersey & Blanchard) — Effective leadership style should adapt based on the developmental level (competence and commitment) of followers.
II.  Path-Goal Theory (Robert House) — Leaders motivate followers by clarifying the path to goals and removing obstacles, adapting style based on task and follower characteristics.
III. Transformational Leadership (Burns & Bass) — Leaders motivate followers exclusively through transactional reward-punishment exchanges tied to performance targets.
IV.  Trait Theory — Leadership effectiveness is determined entirely by situational context, with innate traits having no predictive value.